Airtac LRM Miniature Linear Guide LRM12N2X395S10AP
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X395S10AP is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriages. It is the small end of the range, for light-duty precision positioning in a tight envelope — compact stages, small pick-and-place heads and inspection fixtures.
- SeriesLRM
- Supplied asComplete guide set
- SizeLRM12
- Rail width12 mm
- Carriage lengthStandard carriage
- Carriages2
- Rail length395 mm
- AccuracyP — precision grade
- PreloadA — no preload
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac LRM Miniature Linear Guide LRM12N2X395S10AP
This is the precision-grade version of the 395 mm LRM12 set: LRM12N2X395S10AP pairs a 12 mm wide stainless-steel rail with two standard-length carriages, preload A (none), and accuracy grade P - the tighter of the two grades offered on this series. The rail mounts from the top, with the fixing holes offset 10 mm from the rail end.
Accuracy P only pays off if the mounting surface is prepared to match, so specify a ground or finish-milled seat, and with two carriages on the rail put the datum face on the same side for both to hold running accuracy along the travel. The recirculating balls are ISO 3290 G10, Japanese made - a ball grade, not an accuracy standard for the guide - seated behind a double-lip seal and covered by the outer strip that keeps debris off the sealing lip. The one environmental figure the catalogue publishes is thermal: 80 C ambient maximum, with transient peaks to 100 C. Load and moment ratings are confirmed per model rather than published, so ask us by RFQ before finalizing the design.
Airtac LRM Miniature Linear Guide LRM12N2X395S10AP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X395S10AP |
|---|---|
| Series | LRM Series Miniature Linear Guide |
| Supplied as | Complete guide set |
| Construction | Recirculating ball, stainless-steel rail, common-rail design |
| Size code | LRM12 |
| Rail width | 12 mm |
| Carriage length | Standard carriage |
| Carriages supplied | 2 |
| Rail length | 395 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision grade |
| Preload grade | A — no preload |
| Mounting screws | M2 or M3 rail screws depending on size |
| Lubrication | Pre-filled with Kyodo Yushi PS No. 2; top up through the rear lubrication hole |
| Ambient temperature | Up to 80 °C ambient, 100 °C transient peak |
| Interchangeability | LRM carriages fit LRM rails of the same model |
Specifications follow the official AirTAC LRM catalogue. The catalogue does not publish load or moment ratings, running parallelism, speed limits, or carriage base material for LRM. We will not quote a figure we cannot source — ask us and we will confirm it for your model.
Model Code: Airtac LRM Miniature Linear Guide LRM12N2X395S10AP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X395 | 2 carriages on a 395 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| A | A — no preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| P | P — precision grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 395 mm |
| Carriage | Yes, 2 |
Rail and carriage(s) supplied together, matched as a set. If you are not sure which form you need, send us the machine or the original part number and we will confirm it before you order.
Where the Airtac LRM Miniature Linear Guide LRM12N2X395S10AP Is Used
Fiber-optic coupler alignment fixture
A fixture that fine-positions a fiber collimator against a coupler during epoxy cure, where precision grade P tightens the running tolerance the alignment budget needs.
Lens centering measurement rig
A benchtop rig centering a small camera lens module over its sensor, where two carriages on one rail hold the sensor plate level through the full 395 mm of travel.
Gauge-stand probe carriage rebuild
A maintenance upgrade for an electronic gauge stand whose worn slide is being rebuilt around a new guide; this set arrives with the rail and two carriages ready to fit.
Is the Airtac LRM Miniature Linear Guide LRM12N2X395S10AP the Right Guide?
Accuracy grade P is the tighter of the two LRM grades, so budget the mounting surface to match it: ground or finish-milled flat, with a datum face chosen on one side of the rail and, with two carriages on one rail, kept on that same side for both blocks. If the application needs published ratings to size against, move up to LSH, which lists dynamic, static and moment figures per carriage; if travel is short and you need crossed-roller rigidity instead, compare LGC.
The pre-order checklist: set form, 12 mm rail width, standard carriage length, carriage count 2, rail length 395 mm, preload A (none), accuracy P, top-mount fixing, and a confirmed load and moment rating from us - the figures are not in the catalogue, so send the RFQ before you lock the design.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Load and moment confirmed with us
- ✓ Travel length and mounting space
- ✓ Accuracy grade and preload
- ✓ Mounting surface ground or finish-milled
- ✓ Pairing code, if replacing a part
Installation & Maintenance Notes
- check Mounting surface must be ground or finish-milled.
- check Torque the rail screws per the recommended figures, in sequence.
- check Keep the mounting corner radius inside the stated R maximum.
- check Do not angle the carriage onto the rail; balls can drop out.
- check Drive the supplied bolt caps into the mounting holes.
- check Re-grease every 100 km of travel or every 3–6 months.
- check Installation by qualified personnel per AirTAC docs.
Airtac LRM Miniature Linear Guide LRM12N2X395S10AP FAQ
A 12 mm wide, 395 mm long stainless-steel rail with two standard carriages fitted, preload A meaning none, precision accuracy grade P, top-mount rail fixing. Installation torque runs 58.8 N.cm for M2 screws or 196 N.cm for M3 screws into steel, with lower values into cast iron and aluminium. Operating ambient must stay at or below 80 C, peaking no higher than 100 C. Grease lasts 100 km of travel or 3 to 6 months, whichever comes first - at a 200 mm stroke cycling once a second, that distance arrives in roughly three weeks of continuous running. Load and moment ratings are not published for LRM; we confirm them per model before you order, so send the RFQ.
Every LRM carriage-only code carries a pairing letter from A to E that must match the rail it runs on. When ordering a spare, read the letter off the original carriage or rail rather than assuming, and expect a special order - only a small number of carriage-only SKUs are stocked, all pairing code C. The maker also cautions that even with the ball-retention design, presenting a carriage onto the rail at an angle or swapping it quickly can drop balls, so a dummy rail is worth planning for if carriage swaps will be routine.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LRM Miniature Linear Guide LRM12N2X395S10AP
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours. We can also confirm the load and moment rating for this model.